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comparison src/cpu/x86/vm/sharedRuntime_x86_64.cpp @ 2059:9508a52cbd32

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Add deoptimization blob support.
author Thomas Wuerthinger <wuerthinger@ssw.jku.at>
date Wed, 19 Jan 2011 15:48:15 +0100
parents f95d63e2154a
children d25d4ca69222
comparison
equal deleted inserted replaced
2058:8f033d37798a 2059:9508a52cbd32
2653 __ jcc(Assembler::zero, no_pending_exception); 2653 __ jcc(Assembler::zero, no_pending_exception);
2654 __ stop("must not have pending exception here"); 2654 __ stop("must not have pending exception here");
2655 __ bind(no_pending_exception); 2655 __ bind(no_pending_exception);
2656 #endif 2656 #endif
2657 2657
2658 // (tw) Start of C1X uncommon trap code.
2659 __ jmp(cont);
2660
2661 int uncommon_trap_offset = __ pc() - start;
2662
2663 // Warning: Duplicate code
2664
2665 // Save everything in sight.
2666 map = RegisterSaver::save_live_registers(masm, 0, &frame_size_in_words);
2667
2668 // Normal deoptimization
2669
2670
2671 // fetch_unroll_info needs to call last_java_frame()
2672 __ set_last_Java_frame(noreg, noreg, NULL);
2673
2674 __ movl(c_rarg1, (int32_t)Deoptimization::Unpack_reexecute);
2675 __ movl(r14, c_rarg1); // save into r14 for later call to unpack_frames
2676 __ mov(c_rarg0, r15_thread);
2677 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, Deoptimization::uncommon_trap)));
2678
2679 // Need to have an oopmap that tells fetch_unroll_info where to
2680 // find any register it might need.
2681
2682 oop_maps->add_gc_map( __ pc()-start, map->deep_copy());
2683
2684 __ reset_last_Java_frame(false, false);
2685
2686 Label after_fetch_unroll_info_call;
2687 __ jmp(after_fetch_unroll_info_call);
2688
2689
2690 // (tw) End of C1X uncommon trap code.
2691
2658 __ bind(cont); 2692 __ bind(cont);
2659 2693
2660 // Call C code. Need thread and this frame, but NOT official VM entry 2694 // Call C code. Need thread and this frame, but NOT official VM entry
2661 // crud. We cannot block on this call, no GC can happen. 2695 // crud. We cannot block on this call, no GC can happen.
2662 // 2696 //
2681 // Need to have an oopmap that tells fetch_unroll_info where to 2715 // Need to have an oopmap that tells fetch_unroll_info where to
2682 // find any register it might need. 2716 // find any register it might need.
2683 oop_maps->add_gc_map(__ pc() - start, map); 2717 oop_maps->add_gc_map(__ pc() - start, map);
2684 2718
2685 __ reset_last_Java_frame(false, false); 2719 __ reset_last_Java_frame(false, false);
2720
2721 __ bind(after_fetch_unroll_info_call);
2686 2722
2687 // Load UnrollBlock* into rdi 2723 // Load UnrollBlock* into rdi
2688 __ mov(rdi, rax); 2724 __ mov(rdi, rax);
2689 2725
2690 Label noException; 2726 Label noException;
2843 // Make sure all code is generated 2879 // Make sure all code is generated
2844 masm->flush(); 2880 masm->flush();
2845 2881
2846 _deopt_blob = DeoptimizationBlob::create(&buffer, oop_maps, 0, exception_offset, reexecute_offset, frame_size_in_words); 2882 _deopt_blob = DeoptimizationBlob::create(&buffer, oop_maps, 0, exception_offset, reexecute_offset, frame_size_in_words);
2847 _deopt_blob->set_unpack_with_exception_in_tls_offset(exception_in_tls_offset); 2883 _deopt_blob->set_unpack_with_exception_in_tls_offset(exception_in_tls_offset);
2884 _deopt_blob->set_uncommon_trap_offset(uncommon_trap_offset);
2848 } 2885 }
2849 2886
2850 #ifdef COMPILER2 2887 #ifdef COMPILER2
2851 //------------------------------generate_uncommon_trap_blob-------------------- 2888 //------------------------------generate_uncommon_trap_blob--------------------
2852 void SharedRuntime::generate_uncommon_trap_blob() { 2889 void SharedRuntime::generate_uncommon_trap_blob() {